F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
45/5
F24F 11/02 (2006.01) F24F 12/00 (2006.01) F24F 13/15 (2006.01)
Patent
CA 1324256
(57)Abstract The invention relates to a method and apparatus for con- trolling the fresh-air, input-air, exhaust-air, waste-air and return-air flows, as well as the air pressure in the input-air duct and the air pressure in the exhaust-air duct, in an air-conditioning system which comprises at least input-air and waste-air flow meters (6, 20), input- air and exhaust-air pressure meters (12, 19), an input-air fan (5) with its air-flow control (13), a waste-air or exhaust-air fan (18) with its air-flow control (14), a fresh-air flow meter (15), a heat recovery exchanger (4), closing and control mechanisms for exhaust air and return air, coupled together as an outlet-air mechanism (10), and closing and control mechanisms for fresh air and fresh-air bypass, coupled together as an intake-air mechanism (3). The controls (13, 14) work together, and they have been fitted to act on the fans (5, 18) and mechanisms (3, 10) so that a change in one of the quantities measured will cause the adjustment of some air flow and/or mechanism (3, 10) so that the ratio (A/B) or difference (A-D) of certain air flows will be at the predetermined value, or/and that the bypass flow (F) will open or close. Figure 1
584543
Laine Juhani
Nyman Mikko
Paananen Tapio
Gowling Lafleur Henderson Llp
Ilmatera Oy
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